Vehicle mounted temporary roof support
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United States of America Patent
Stats
-
Feb 24, 1981
Grant Date -
N/A
app pub date -
Apr 16, 1979
filing date -
Apr 16, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A temporary roof support for mounting to a mining vehicle comprising a boom pivotally mounted to the vehicle and positioned in front thereof for rotation in a vertical plane and an extensible standard pivotally mounted to the front of said boom. An extensible hydraulic device secured at one end to the standard and at the other end to the boom adjusts the angular relationship therebetween. A transverse beam is mounted to the top of the standard for restricted angular movement.
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